SizeChina vs Intergalactic Solar System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SizeChina
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The SizeChina database is the first-ever 3D digital database of Chinese head and face shapes. Accurate facial dimensions extracted from the SizeChina database can be accessed from this app, which helps students and professionals alike in designing Chinese-fit consumer products such as glasses, helmets and face masks.
Intergalactic Solar System
Explore planets, moons, and countries in this space simulator mini-game. Learn astronomy and geography aligned with next-generation science standards. Discover the Milky Way galaxy and assess your knowledge through engaging gameplay.
- Planet and moon exploration
- Country geography learning
- Milky Way galaxy view
- Common Core aligned curriculum
- Proficiency assessment
- Engaging gameplay levels
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Intergalactic Education introduces Intergalactic Solar System, a mini-game that teaches about planets, moons, and countries. This space simulator lets you explore celestial bodies from the viewpoint of space itself. The latest edition adds the Milky Way as an observable galaxy. Intergalactic Solar System uses next generation science standards (Common Core aligned) astronomy and geography. (Follows standards ESS1.A, ESS1.B, and CCSS.ELA-LITERACY.RH.6-8.7) Try Intergalactic Solar System! Assess proficiency in Solar System knowledge according to educational standards. Rewarding levels of gameplay maintain engagement. You will forget you were doing astronomy and geography!
Screenshots
Verdict
The clearest difference is in-app purchases: SizeChina at none against Intergalactic Solar System's 1. Intergalactic Solar System's advantage is update cadence (monthly vs every 60 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Intergalactic Solar System sells 1 one-off in-app purchase. SizeChina asks for nothing beyond the download.
SizeChina ships an update every 60 months, Intergalactic Solar System monthly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.
| Parameter | SizeChina | Intergalactic Solar System |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (25 ratings) — better |
| Positive reviews | — | 70.0% of reviews |
| Number of ratings | — | 25 — better |
| Update frequency | Every 60 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 23 MB | 355 MB |
| Age rating | 4+ | 4+ |
| Developer | Apps Resource Centre, Hong Kong Baptist University | Intergalactic Education LLC |
In-app purchases
SizeChina
No in-app purchases
Intergalactic Solar System
- Access to Full Game$3.99
Questions
Is SizeChina free?
Is Intergalactic Solar System free?
Do SizeChina or Intergalactic Solar System have ads?
Which is updated more often, SizeChina or Intergalactic Solar System?
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